Carbureter.



2 SHEETS-SHEET l.

l A '61g "a Patented Deo. 14, 1915.

CARBURETEB.

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IVI. R. RODRIGUES & M. I. SCHMITT.

CARBURETER.

APPLICATION FILED DEC. 7.1911.

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WITNESSES' [N VEN T ORS I www JM ATTORNEY.

COLUMBIA PLANOURAI'H Co., WASHINGTON. D, C4

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IVIANL IR. RJOZDRIGS A-'ND MARTIN J. SCHMITT, 0F NEW YORK, N. Y.

GARBURETER.

Speclcaton of Letters Patent.

.Patented Dec. let, i915.

Applicatonfled December 7, 1911. Serial No. 664,477.

To all whom t may concern.' i

Be it known that we, MANUEL R. RODRI- GUns and MARTIN J. SCHMITT,citizens of the United States of America, and residents of the boroughof Brooklyn,` county of Kings, city and State of New York, `haveinvented a certain new and useful Can bureter; and we do hereby setforth such a full, clear, and exact description as will enable theinvention to be fully understood by tho-se skilled in thepart.

This invention relates to `certain useful improvements in carbureters'tobe used 1n connection with internal combustion engines in which volatileliquids, as for example, gasolene, kerosene, fuel oil or the heavierhydrocarbon oils, or other transient fluids may be volatilized orintermingled with air, so as to form a rich mixture, and preferably arich explosive gaseous mixture, suitable for operating 'internalcombustion engines.

The invention may also be utilized in order to serve as a. means forsupplying air in a finely divided condition and intimately mixed with avolatile liquid, or with the vapor of a transient liquid so as toproduce lelastic combustible fluid equable inquality, 'volatility anddensity and free from 1mpurities, suitable for use for illuminating,cooking or heating purposes if so desired.

According to our invention we employ certain means for distributing thehydrocarbon gas or other volatile fluid in .vsu'ch a manner that it willthoroughly mix with the air as it passes through a vessel from one endto the other, and more particularly to devices for mixing the air withthe vapor by causing it to pass `across a charged fabric or othermaterial or absorbent, porous or cellular structure. y

-ln its more detail nature the invention embodies certain novel featuresof construction, combination and arrangement of parts as herein setforth, and it has for its object the provision of an apparatus of thekind set forth forming in operation a simple `and eiiicientorganization.

In order to enable the invention to be fully understood, we shallproceed to explain the saine by reference to the drawings, illustrativeof embodiments of` our invention, which accompany and form a part ofthis specification, and in which `Figure l represents a longitudinalsection of an apparatus constructed according vto our invention, Fig. lais a plan view of the same, Fig. 2 is a partial longitudinal section ofanother apparatus in which our invention is embodied, Fig. 2 is atransverse section of the same, Fig. 3 is a longitudinal section ofanother apparatus constructed according to our invention, Fig. 3a is aplan view, and F ig. 3" a transverse section of the same, Fig. 4 is atransverse section of another apparatus in which our invention isembodied, Fig. 4f* is a plan view of the same, Fig. is a longitudinalsection of another apparatus constructed according to our invention, andFig. 5 is a side elevation .and Fig. 5b an end elevation of the saine.

Like letters of reference indicate like parts in all the views.

`ln carrying out our invention in the spe- 'ciiic devices illustratedinV Fig. l, we e1nploy a preferably laterally disposed vessel preferablyconsisting of a casing made of any suitable material as for example, acasting made of iron or any other convenient metal or alloy, or ofsuitable sheet metal, which vessel `may be made integral, or preferablyin sections of approximately equal size as illustrated at A, B, in Figs.l and 5, or the top portion of the vessel B may be formed so as to bedetachable in order to serve as and to constitute a cover, as A, asshown in-Figs. 2, 3 and 4l, the said sections in either case beingconstructed and arranged to be rigidly held together in a gas tightrelation.

rlhe vessel B is preferably constructed with a wall or partition E nearthe end thereof, whereby the vessel may be divided into two compartmentsor chambers C and D, although the chamber D may be located at a distancefrom the compartment C if so desired. y

The liquid fuel chamber D has, pref-erably, an opening 4t for theadmission of the Vvolatile fluid, which chamber may be provided withmeans for regulating the introduction of the lliquid into the chamber 'Cby any well known or suitable controlling apparatus such as is wellknown in the art, as for example, by the use ol a valve "7 controlled bya float 8 whereby `the carbureting fluid may be supplied to the mixingchamber 'C as fast as the consumption of the said liquid takes it outIof the said receptacle. In Acase the liquid fuel chamber is locatedVapart from `the vessel B, `the *fluid may be conveyed to the latter bymeans of a tube,

as 4a, extending from the vessel B, as illustrated in Fig. 5, or a pipemay be inserted in an opening formed in the casing of the mixing chamberas shown at 4b in Fig. 4.

The wall or partition E is preferably pro- .vided with means to affordcommunication between the chambers C and D which means may consisteither of a longitudinal or horizontal slot 5 as illustrated in Figs. l,2 and A 215er of a plurality of orifices 5a as shown in Figs. 3, 3a and3b, which long slot 5 or orifices 5a preferably containing short wicksv5"-may be located at any convenient height l in the separating wall E.

The casing of the vessel A, B, may be of dual formation, as illustratedin Fig. l,

where the outer casing A, B, serves to prop vide a jacket for the vesselA, B, the intermediate space constituting a chamber F, through which hotgas or a hot liquid or other medium may be circulated.

The numeral 1 denotes a series of preferably solid depending baffleplates attached to the upper portion or cover A of the apparatus whichordinarily hang down to within a short distance yof the interior bottomof Athe vessel B. 2 designates a series of intermediate balile platesprojecting upward from the said bottom of the vessel B which platespreferably reach nearly to the inte- .rior topA of the cover A. Theseplates are chamber C. The said baflie plates and ves- Vsel wallscomprise a number of compartments comprising vertical portions andlaterally disposed parts. The mixture contained within any one of thesaid compartments must pass through the fabric 3, supported by theplates l and 2, in order to reach the next forward compartment. Themixture is thus successively filtered, and, in-

. asmuch as'the fabric is not so moist at the far or exhaust end thereofas it is at the portion adjacent to the chamber D, the mixturebecomes'drier as it approaches the outlet or exhaust Gr of the saidchamber C.

The fabric 3, which may be made of cotl ton material or may consist ofwicking or of any suitable absorbent porous or cellular structure, ispreferably constructed and arranged so as to run in a sinuous mannerbetween tlie baffle plates, which are ordinarily arranged so as to forma series of short lateral and relatively longer vertical passages ofrelatively large and small sectional areas,

the said fabric preferably being so held as j thevcompartment C. Thewicks 5" are preferably employed in instances where slots 5 are used, inwhich cases it would not be practicable to extend the fabric 3 throughthe same. Such devices are ordinarily employed Y where the mass ofcarbureting liquid is supplied under considerable pressure and volume.In cases where liquid feed controlling means is employed in the chamberD, the orifices or slot in the wall E may be free so vas to give freeaccess of the liquid to the fabric.

It will be noted that the vessel, baille kplates and porous materialspaced therefrom are constructed and arranged to respectively form thealternate and inclined walls of a series of adjacent compartments eachprojecting beyond the median plane of the vessel.

The air to be carbureted enters the vessel through the opening Gr andflows through the vessel A. B. Owing to the relatively small channels orpassages between the ends ofthe baiie plates and the casing the aircurrent or jets become mixed with the vapor rising from the saturatedfabric, and as the air, which is preferably forced through the vessel bymeans of a suitable fan blower, is thrown against successive layers ofthe charged absorbent material and the resisting baiiie plates, thecircuitous passage of the air from the inlet pipe G to the outlet orservice pipe G causes it to become thoroughly charged with thehydrocarbon vapor thereby forming a rich mixture suitable forilluminating, heating and power purposes.

It is noted that in our carbureter the liquid is not allowed to runalong the entire bottom of the same without hindrance in the customarymanner, as in suoli cases, where the entire apparatus is flooded, theabsorbent material becomes thoroughly soaked and saturated equally wellthroughout its entire length, under which conditions it is impossible toprevent Small globules of the volatile hydrocarbon liquid from leavingthe final or last carbureting chamber with the saturated vapor. In*order to prevent this,

the hydrocarbon liquid is fed solely into` or allowed to enter the firstcompartment of the carbureter alone. In the carbureter of this inventionthe absorbent material is only designed to be positively charged withthe hydrocarbon liquid in the first chamber thereof. The air enteringthis compartment, and while under pressure, and taking the tcrtuouspassage around and through the sinuous absorbent material located in theseveral compartments, will absorb enough of the hydrocarbon in the lirstchamber alone to become perfectly saturated. One of the main objects ofthis invention is to have the wicking or other absorbent material whichis located in the last few chambers (and which is dryer than the forwardpart thereof) filter the charged air by absorbing such small globules ofliquid as may be free or in suspension and which are ordinarily sprayedthrough a carbureter by the pressure of the air, so that there will benothing left but a dry, highly inflammable mixture leaving the lastcompartment. To this end, as stated, the carbureting liquid is onlyallowed to enter one, i. e. the first, chamber,

where the absorbent material takes up enough hydrocarbon liquid bycapillary attraction to meisten it, and the air passing through thismoist wicking is carbureted, and after passing through successive dryerportions of the said absorbent material of the' respective compartments,leaves the carbureter in a dry state containing absolutely no globulesof gasolene, benzin, or other liquid hydrocarbon. The said wicks, as 5b,are inserted in order to prevent the too free passage of the liquidthrough the inlet orifice, as 5, in cases where it is preferred tointroduce the fluid by capillary action. This particular method isdesigned to be employed in cases where so rich a mixture is not desired,and also in connection with explosive engines where the cylinders are ofsmall diameter. By the adoption of this invention, the passage of smallglobules of hydrocarbon liquids from the outlet of the carbureter intothe explosion chamber of the engine is prevented, which dry vaporthereby produces an explosion that is practically an absolutecombustion, causing practically no odor or smoke, as there is suificientoxygen present to completely oxidize all the carbon and hydrogenexisting in combination in the hydrocarbon carbureting liquid, theresulting gases of combustion becoming practically odorless andsmokeless, forming C()2 and H2O in vapor form which are both colorlessand odorless. According to the ordinary methods usedl in mixing, orspraying the hydrocarbon and air into the explosion chamber, smallglobules of the liquid are carried by suspension into the said chamber,which causes a superabundance of hydrogen and carbon to; be present, andthe oxidation of the carbon and hydrogen being incomplete, free carbonis liberated, and smoke and gases are emitted from the exhaust.

Copies of this patent may be obtained for It will be observed that thefabric is kept in a continuously charged condition, so that the area ofthe volatile liquid, is enlarged as much as possible before the aircomes in contact with it although the woven material is not thoroughlysaturated throughout its entire length, and by the peculiar constructionand arrangement of the tortuous passages within the vessel thehydrocarbon vapor and air are kept in a state of contact and agitationby striking against the successive baille plates until the completemixture of the two is effected.

The number of the baille plates may be proportioned to the quality ofthe oil or other volatile liquid employed.

The air may, if preferred, be drawn through the apparatus by suction,as, for example, in cases where the device is used in connection with aninternal combustion engine.

Inasmuch as some portions or features of our invention may manifestly beused without all of the others, and as obvious modilications will occurto persons skilled in the art, and as our invention may be embodied inwidely varying forms, we wish it to be understood that we do not desireto be limited to the exact details of construction shown and described.

What we claim as our invention is In a carbureter, the combination witha casing, of imperforate plates or partitions forming a tortuous passagefor the air, said passage comprising a number of portions positioned atan angle tothe longitudinal axis of the casing and connectinglongitudinally disposed parts, and a unitary porous material to passsuccessively through the various portions of the said passage, the saidplates, casing and porous material being constructed and arranged torespectively form the walls of a series of adjacent communieatingcompartments, each projecting beyond the median plane of the casing, andmeans to charge the first chamber only with hydrocarbon fluid, saidunitary porous material serving as the sole means of conducting theliquid from the first chamber to the others.

Tn testimony of the foregoing specification we do hereby sign the samein the borough of Brooklyn, city of New York, county of Kings, and Stateof New York, this 1st day of Dec., 1911.

MANUEL R. RGDRIGUES. MARTIN J. SCHMITT.

Vitnesses:

JOSEPH A. COTRELL, E. A. MARscHALK.

five cents each, by addressing the Commissioner of Patents.

Washington, D. C.

